Cadillac 2010 CTS Sport Sedan Owner's Manual page 351

Low-Beam (without
LO BEAM High Intensity
(W/O HID) Discharge), Left
LT DRL Daytime Running
(HID) Lamp (High Intensity
Discharge)
PWR/TRN Powertrain
REAR
Rear Defogger
DEFOG
Right Daytime
RT
Running Lamp (High
DRL (HID)
Intensity Discharge)
SPARE Spare
STRTR Starter
WPR Windshield Wiper
Windshield Wiper
WPR HI
High Speed
The rear compartment fuse block is located on top of the battery, on the right
side of the trunk. The battery access door must be removed to access the
fuse block.
FUEL/DR/
Not Used
RELSE
LCK Lock
LT/POS/LP Left Position Lamp
MRKR/LP Not Used